[PATCH v2 05/27] hpsa: check for null arguments to dev_printk

Don Brace
2015-11-04T21:54:18Z

Check for NULLs.

Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
---
drivers/scsi/hpsa.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 5a996273..b64913f 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1138,6 +1138,9 @@ static int hpsa_find_target_lun(struct ctlr_info *h,
static inline void hpsa_show_dev_msg(const char *level, struct ctlr_info *h,
struct hpsa_scsi_dev_t *dev, char *description)
{
+ if (h == NULL || h->pdev == NULL || h->scsi_host == NULL)
+ return;
+
dev_printk(level, &h->pdev->dev,
"scsi %d:%d:%d:%d: %s %s %.8s %.16s RAID-%s SSDSmartPathCap%c En%c Exp=%d\n",
h->scsi_host->host_no, dev->bus, dev->target, dev->lun,